怎么写啊2m/s =[ ]km/h如题还有一道 54km/h=[ ]m/s

怎么写啊2m/s =[ ]km/h如题还有一道 54km/h=[ ]m/s km/h 怎么换算成m/s?40km/h=?m/s km/h=m/s啊? 2km/h=?m/s km/h=?m/s? 43.2km/h=?m/s?43.2km/s=?m/s?怎么换算? 2m/s=( )km/h,54km/h=( )m/s 1m/s=?km/h 怎么算 KM/h转化M/s怎么转 m/s怎么化成km/h, 5km/h怎么换成m/s (1)1km/h= km/min =m/s (2)8m/s= m/min =km/s 科学换算 紧急!(1.)54km/h=54乘( ) = ( ）m/s (2) 5m/s=5乘( )=( )km/h (3) 10m/s=( )km/h (4) 72km/h=( )m/s(5) 54m/s=( )km/h (6) 18km/h=( )m/s(7) 12.5m/s=( )km/h 物理单位换算是怎么算的km/h=m/s m/h=m/s km/s=m/s km/s=km/h要乘还是除,乘多少,除多少 108km/h=30m/s怎么算的啊 如5km/min= km/h= m/h= km/s= m/s 1km/min=?km/h=?m/h=?km/s= m/s 1m/s=( )km/h